BS 4486-1980 Specification for hot rolled and hot rolled and processed high tensile alloy steel barsBS 4486-1980 Specification for hot rolled and hot rolled and processed high tensile alloy steel bars for the prestressing of concrete
部份国外标准涉及版权问题,所以全部国外标准于2013年02月,全部删除!相关页面仅提供参考消息。